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All results from a given calculation for H2OHCOOH (Water formic acid dimer 2)

using model chemistry: B3LYPultrafine_cp_opt/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYPultrafine_cp_opt/6-31G*
 hartrees
Energy at 0K-266.171451
Energy at 298.15K-266.175286
Nuclear repulsion energy70.023053
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYPultrafine_cp_opt/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3823 3662 61.23      
2 A 3667 3513 81.03      
3 A 3662 3509 124.04      
4 A 3119 2988 22.47      
5 A 1831 1754 322.37      
6 A 1736 1664 109.09      
7 A 1423 1364 5.42      
8 A 1338 1282 12.33      
9 A 1163 1114 233.65      
10 A 1068 1024 1.59      
11 A 717 687 166.49      
12 A 636 609 52.33      
13 A 508 487 177.81      
14 A 339 325 150.14      
15 A 165 158 4.81      
16 A 76 73 101.39      
17 A 71 68 31.03      
18 A 46 45 15.31      

Unscaled Zero Point Vibrational Energy (zpe) 12695.0 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 12161.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYPultrafine_cp_opt/6-31G*
ABC
0.89754 0.08723 0.07965

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.769 0.347 -0.047
O2 -2.489 -0.309 -0.055
O3 0.183 0.878 -0.006
H4 -3.227 0.146 0.373
C5 0.725 -0.204 0.022
O6 2.053 -0.393 0.001
H7 0.202 -1.168 0.068
H8 2.466 0.492 -0.042

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97422.02361.53092.55583.89302.48914.2378
O20.97422.92430.96773.21694.54242.82745.0193
O32.02362.92433.50901.21062.26032.04722.3156
H41.53090.96773.50903.98395.32043.68535.7192
C52.55583.21691.21063.98391.34061.09761.8758
O63.89304.54242.26035.32041.34062.00710.9776
H72.48912.82742.04723.68531.09762.00712.8093
H84.23785.01932.31565.71921.87580.97762.8093

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 104.061 H1 O3 C5 101.435
O2 H1 O3 152.816 O3 C5 O6 124.671
O3 C5 H7 124.912 C5 O6 H8 106.987
O6 C5 H7 110.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.412      
4 H 0.000      
5 C 0.365      
6 O -0.515      
7 H 0.151      
8 H 0.411      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.765 1.065 0.768 2.199
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.913 -0.932 -2.864
y -0.932 -24.467 0.052
z -2.864 0.052 -23.419
Traceless
 xyz
x 5.030 -0.932 -2.864
y -0.932 -3.301 0.052
z -2.864 0.052 -1.729
Polar
3z2-r2-3.457
x2-y25.554
xy-0.932
xz-2.864
yz0.052


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.999 -0.130 0.016
y -0.130 2.936 0.010
z 0.016 0.010 1.312


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000